A new 24c Label has been developed for Liberty applications in cotton. Basically the label allows for a shorter interval between applications. Research has shown understanding the time interval between sequential post applications is one of many critical components for an effective weed management system. The figure below compares 6″ Palmer amaranth response to sequential Liberty applications as influenced by interval between applications. Obviously, one needs to apply Liberty when the biggest pigweed in the field is 3” for complete control and in this event a follow up application can be made when the next flush of pigweed reaches 3”. With the challenging weather during 2020, spraying all weeds at 3” or less may not be practical for some fields; thus, when pigweed is too large to kill with the first application then the second application timing is important.
If you use liberty in this manner you need to have the label in hand.
